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李安起，賈留東，夏風(fēng)敏
(山東建筑大學(xué)土木工程學(xué)院，山東省建筑結(jié)構(gòu)鑒定加固與改造重點(diǎn)實(shí)驗(yàn)室，濟(jì)南250101)

[摘要] 分析了行業(yè)標(biāo)準(zhǔn)《混凝土結(jié)構(gòu)后錨固技術(shù)規(guī)程》（JGJ145 - 2004）和國家標(biāo)準(zhǔn)《混凝土結(jié)構(gòu)加固設(shè)計(jì)規(guī)范》GB50367-2006對(duì)于植筋錨固深度的規(guī)定，對(duì)比了二者間的差異，對(duì)于《混凝土結(jié)構(gòu)加固設(shè)計(jì)規(guī)范》(GB50367-2006)中植筋位移延性修正系數(shù)ψ_ae的取值問題進(jìn)行了探討，分析了植筋錨崮深度小于鋼筋錨吲長度的原因。
[關(guān)鍵詞] 化學(xué)植筋；錨固深度；位移延性修正系數(shù)

    Study on embedment length of bonded rebars
    LiAnqi,  Jia Liudong,  Xia Fengmin
  ( School of Civil Engineering,   Shandong Jianzhu University; Shandong Provincial Key Laboratory ofAppraisal and Retrofitting in Building structures, Jinan 250014, China)

Abstract: This paper specifies the different stipulations about embedment length of bonded rebars, between "Technical specification for post-installed fastenings in concrete structures" JGJ145-2004 and "Design code for strengthening concrete structure" GB50367-2006. The value selection of Correction Factor of displacement ductility( ψ_ae)iS discussed. The reasons of embedment length of post-installed bonded rebars smaller than normal rebars is analyzed.
Keyword: bonded rebars; embedment length; correction factor;  displacement ductility